1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x362c6b8ea6f7a90832217d6ea57c5758eaf3f5efea78182a6bec9c764c153fdd. Chain 2 (Bitcoin): anchored in block 953674 (2026-06-14T19:07:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5bd93976-af12-4e98-a3bc-42fee7ae2718.json and https://artists.proofprofile.net/proofs/artist/5bd93976-af12-4e98-a3bc-42fee7ae2718.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Heckna's Hellish Howlings (Original Game Soundtrack)
Big Bads: Music to Beat Bosses to (Original Game Sountrack)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26adf4fb2c5f0faf3033523d6cf6d12b6b0fd18cd30cb44e1e7fe929c6a7b850. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42434924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc392f033dd99e659dfc6be76f3e24b246b85e2296553232f738c876ad09328b. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42434927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0557cfe2d23d80269c9191246b5a7ae83ee15c1eb474ead20fc0d0040b0d43d3. Chain 2 (Bitcoin): anchored in block 958775 (2026-07-19T22:37:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZFZ42434929.
Fool's Gold: Into the Bellowing Wilds (Official Game Soundtrack)
Humblewood: Beyond the Canopy (Original Game Soundtrack)